A couple of years ago I knitted a ribbed hat with 4 x 4 ribbing -- the entire hat. I can't find my pattern, and I don't remember how I decreased at the crown area. I believe I used circular size 5 or 6 needles I knitted it with Plymouth outback wool. Can anyone assist with instructions regarding the decreasing on 4 x 4 ribbing. I would appreciate any help. Thank you! (I am new to this site -- I may have duplicated this question -- I don't think I hit "submit", but if so, I apologize).